Return-Path: X-Original-To: apmail-hbase-user-archive@www.apache.org Delivered-To: apmail-hbase-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 6623EE91D for ; Thu, 27 Dec 2012 15:40:13 +0000 (UTC) Received: (qmail 32945 invoked by uid 500); 27 Dec 2012 15:40:11 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 32894 invoked by uid 500); 27 Dec 2012 15:40:11 -0000 Mailing-List: contact user-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hbase.apache.org Delivered-To: mailing list user@hbase.apache.org Received: (qmail 32885 invoked by uid 99); 27 Dec 2012 15:40:11 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 27 Dec 2012 15:40:11 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of nkeywal@gmail.com designates 209.85.215.49 as permitted sender) Received: from [209.85.215.49] (HELO mail-la0-f49.google.com) (209.85.215.49) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 27 Dec 2012 15:40:03 +0000 Received: by mail-la0-f49.google.com with SMTP id r15so12138791lag.8 for ; Thu, 27 Dec 2012 07:39:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=KAPbLYMPtZYtHJTnNzg1I4BX3tLdZ1svqYbgXXYr4es=; b=LpthLOHa/6tjFR3K/WHeYuwzqfv+QfVxKgBpWSfop6HV097IblcLho6TEAnBhnA2zC cib+zObTCKbQZwLJFYEukOIvZXWaWQyIj+Ns6HnkJWJNhWlAGjd3xAi7NboXddIQ9OsI BnKAJ+kL75ZSrNv+J245ogY+fpkH0d01mXyKSlO5/oAe5r34OmUhm0SpO0PsZpWJrxCT wojRfkb99+Gx6wFfJVZlTrn+oYlCj9m8+Z8O51Q83gxCtaa2LfEiPpVQ8hiNebwAXjm+ hXZh88aA/aCTx/1NayBDI7kzarkxhDKYqudNpaaWZoqUaO0iBz26xj5/sluXc8GXW7rM NjwQ== Received: by 10.152.124.226 with SMTP id ml2mr28316716lab.46.1356622782920; Thu, 27 Dec 2012 07:39:42 -0800 (PST) MIME-Version: 1.0 Received: by 10.112.8.9 with HTTP; Thu, 27 Dec 2012 07:39:22 -0800 (PST) In-Reply-To: References: <50D4F6AD.1040902@getjar.com> <50D52954.3000003@getjar.com> <50D55AD3.7040108@getjar.com> <50D78CD4.5000506@getjar.com> <49184597-EC32-49E1-8DB8-9A44885F146B@gmail.com> From: Nicolas Liochon Date: Thu, 27 Dec 2012 16:39:22 +0100 Message-ID: Subject: Re: HBase table affinity to host(s) To: user@hbase.apache.org Content-Type: multipart/alternative; boundary=f46d042f96fc11f93504d1d75b76 X-Virus-Checked: Checked by ClamAV on apache.org --f46d042f96fc11f93504d1d75b76 Content-Type: text/plain; charset=ISO-8859-1 You don't want the a balancer to move a region to a region server you're about to close. And a rolling restart is stressful enough on the system; minimizing any extra noise is safer. But when a region server dies, its regions are reallocated, whatever the balancer settings. On Thu, Dec 27, 2012 at 4:09 PM, Adrien Mogenet wrote: > Are you sure ? So why is the balancer disabled before rolling restart ? --f46d042f96fc11f93504d1d75b76--